Pulsatile Tinnitis Help I'm scared!

I've had pulsatile tinnitis in my right ear since December. It actually prompted an ER visit because I was afraid I was having a stroke. I was admitted, worked up with a head ct, MRA of the head/neck and bother were normal. But the whooshing noises in my right ear continue. It's worse when it's quiet or I'm wearing headphones. It's starting to freak me out. I have health anxiety as it is, and now when I have a headache I automatically think I must have an aneurysm or something. I see an ENT doctor tomorrow, but I am still scared of going to sleep and not waking up. Does anyone else have this condition?